iOS Keyboard in Landscape

There are a number of articles that describe how to fit your view in the available space when the keyboard is being displayed. So the keyboard does not cover the UIView. But I haven't seen one that covers the situation when the orientation is landscape.

The trick here is that although the view is aware of the orientation, the keyboard is not. This means in Landscape, the keyboards width is actually its height and visa versa. So I've posted a number of methods but the keyboardWillShow method is the one of most interest. And in particular, the line